AOZ1212AI Alpha & Omega Semiconductor Inc, AOZ1212AI Datasheet

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General Description The AOZ1212 is a high efficiency, simple to use, 3A buck regulator flexible enough to be optimized for a variety of applications. The AOZ1212 works from a 4.5V to 27V input voltage range, and provides ...

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... Ordering Information Part Number Ambient Temperature Range AOZ1212AI -40°C to +85°C AOZ1212DI -40°C to +85°C AOS Green Products use reduced levels of Halogens, and are also RoHS compliant. Please visit www.aosmd.com/web/quality/rohs_compliant.jsp Pin Configuration LX 1 BST 2 GND SO-8 (Top View) Pin Description Pin Number ...

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Block Diagram +5V VBIAS UVLO EN & POR Reference Softstart & Bias GM = 200µA/V + 0.8V EAmp FB – COMP Frequency Foldback Comparator + – 0.2V Absolute Maximum Ratings Exceeding the Absolute Maximum Ratings may damage the device. Parameter ...

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Electrical Characteristics T = 25° 12V 3.3V unless otherwise specified OUT Symbol Parameter V Supply Voltage IN V Input Under-Voltage Lockout Threshold UVLO I Supply Current (Quiescent Shutdown Supply ...

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Typical Performance Characteristics Circuit of Figure 25° Light Load (DCM) Operation 1μs/div Startup to Full Load 2ms/div 50% to 100% Load Transient 200μs/div Rev. 1.7 November 2010 = 24V ...

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Efficiency Curves Efficiency 100 95 3.3V OUTPUT 90 1.8V OUTPUT 0.2 0.5 0.8 1.1 1.4 1.7 2.0 2.3 Current (A) 100 Rev. 1.7 November 2010 100 95 90 ...

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Detailed Description The AOZ1212 is a current-mode step down regulator with integrated high side NMOS switch. It operates from a 4.5V to 27V input voltage range and supplies load current. The duty cycle can be adjusted ...

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The inductor current stops rising. The cycle- by-cycle current limit protection directly limits inductor peak current. The average inductor current is also limited due to the limitation on the peak ...

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The peak inductor current is: Δ ------- - = + Lpeak O 2 High inductance gives low inductor ripple current but requires larger size inductor to avoid saturation. Low ripple current reduces inductor core losses. It also ...

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The zero is a ESR zero due to output capacitor and its ESR can be calculated by: 1 ------------------------------------------------ × × 2π C ESR O CO where the output filter capacitor ...

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– total_loss The power dissipation of inductor can be approximately calculated by output current and ...

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... COMP VIN 8 VBIAS Rev. 1.7 November 2010 4 FB AOZ1210 /2 3 GND Vin 2 BST 1 LX Figure 3a. Layout Example for AOZ1212AI COMP 5 4 GND 6 3 GND EN Vin 7 2 BST Vin LX VBIAS 8 1 Figure 3b. Layout Example for AOZ1212DI www.aosmd.com AOZ1212 Page ...

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Package Dimensions, SO 7° (4x) 0.1 b 2.20 5.74 1.27 0.80 Unit: mm Notes: 1. All dimensions are in millimeters. 2. Dimensions are inclusive of plating 3. Package body sizes exclude mold flash and ...

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Tape and Reel Dimensions, SO-8 SO-8 Carrier Tape Unit: mm Package SO-8 6.40 5.20 2.10 1.60 ±0.10 ±0.10 ±0.10 ±0.10 (12mm) SO-8 Reel Tape Size Reel Size M N ...

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Package Dimensions, 5x4A DFN-8 D Index Area (D/2 x E/2) TOP VIEW A FRONT VIEW RECOMMENDED LAND PATTERN 0.95 Typ. 2.25 1.86 0.65 4.20 0.40 4.51 Notes: 1. Dimensions and tolerancing conform to ASME Y14.5M-1994. 2. All dimensions are in ...

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Tape and Reel Dimensions, 5x4A DFN-8 Tape UNIT: mm Package DFN 5x4 5.30 4.30 1.20 ±0.10 ±0.10 ±0.10 (12 mm) Leader/Trailer and Orientation Trailer Tape 300mm Min. Rev. 1.7 November 2010 D1 ...

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Reel M Tape Size Reel Size M ø330 12mm ø330 +0.3 -4.0 6.45±0.05 6.2 8.9±0.1 14 REF 11.90 41.5 REF 43.00 44.5±0.1 10.0 A 2.00 6.50 Rev. 1.7 November 2010 12.40 2.40 0.5 ±0.3 +2.0 -0.0 ...

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... Part Marking AOZ1212AI Fab & Assembly Location AOZ1212DI Fab & Assembly Location This data sheet contains preliminary data; supplementary data may be published at a later date. Alpha & Omega Semiconductor reserves the right to make changes at any time without notice. LIFE SUPPORT POLICY ALPHA & ...